| 单词 |
osmiridium |
| 释义 |
osmiˈridium
Orig., another name of the alloy commonly called iridosmine. Now usu. distinguished from iridosmine (see quots. 1968, 1973). [For references to G. osmiridium (1828, 1831), osm-iridium (1824), and osmium-iridium (1821) see Mineral. Mag. (1963) XXXIII. 716.]
1880Libr. Univ. Knowl. (U.S.) XII. 845 A native alloy of iridium, osmium, and ruthenium. This is called scaly osmiridium [‘a gray, scaly, metallic substance’, remaining ‘when crude platinum is dissolved in nitro-muriatic acid’]. 1938Mineral. Abstr. VII. 162 Osmiridium (nevyanskite) from Bolshaya Victorievka mine, Kusuetsky Alatau, West Siberia..gave Os 40·3, Ir 41·6, Ru 4·2, Pt 1·1, Au 1·8, Fe 8·5. 1963[see nevyanskite]. 1966Phillips & Williams Inorg. Chem. II. xxxiv. 609 The platinum metals occur native in the alloy osmiridium. 1968I. Kostov Mineral. ii. i. 90 Iridosmine (Ir, Os) with Os>35%, and osmiridium (Os, Ir) with Os80 at. %... Our proposals for alloys in the Os-Ir-Ru system are that:..e) Iridosmine of Hey (1963) be redefined as hexagonal (Os, Ir) alloys with no single other element >10 at. % of total, and where Os10 at. % of total, and where Ir‹80 at. % of (Ir + Os). |
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